摘要
针对井下LED照明设备对低压直流供电可靠性的要求,采用Buck型复合式H桥拓扑对AC-DC变换器的整流级进行了设计,使整流级既可以参与单位功率因数整流,又能够实现对纹波扰动的抑制。文章详细分析了Buck型复合式H桥整流器的工作原理、电路等效模型,推导了实际被控量的开关状态函数,提出了一种电压前馈解耦控制策略,在此基础上对解耦电路的关键参数进行设计。最后通过仿真验证了控制策略和解耦电路参数的正确性。
Aiming at the requirements of underground LED lighting equipment for the reliability of low-voltage DC power supply, a buck-type composite H-bridge topology is used to design the rectifier stage of the AC-DC converter, so that the rectifier stage can participate in unit power factor rectification and suppress ripple disturbances. The working principle and equivalent circuit model of Buck-type hybrid H-bridge rectifier are analyzed in detail, the switching state function of the actual controlled variable is derived, and a voltage feedforward decoupling control strategy is proposed. The key parameters of the circuit are designed. Finally, the correctness of the control strategy and the parameters of the decoupling circuit is verified in simulation tests.
作者
程红
申伟良
管玉应
司明君
王聪
CHENG Hong;SHEN Wei-liang;GUAN Yu-ying;SI Ming-jun;WANG Cong(School of Mechanical Electronic and Information Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)
出处
《煤炭工程》
北大核心
2021年第8期145-150,共6页
Coal Engineering
基金
国家自然科学基金资助项目(51577187)
中央高校基本科研业务费资助项目(2009KJ02)。
